/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

/**
 *
 * @author Haqim
 */
public class jSonTest extends HttpServlet {
    private String json;
    
    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("application/json");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            //            out.println("<!DOCTYPE html>");
            //            out.println("<html>");
            //            out.println("<head>");
            //            out.println("<title>Servlet jSonTest</title>");
            //            out.println("</head>");
            //            out.println("<body>");
            out.println("<h1>Servlet jSonTest at " + request.getContextPath() + "</h1>");
            //            out.println("</body>");
            //            out.println("</html>");
            
//            
            Gson gson = new Gson();
            gson.toJson(1231, System.out);
            
            Writer writer = new FileWriter("Output.json");

    //Gson gson = new GsonBuilder().create();
    gson.toJson("Hello", writer);
    gson.toJson(123, writer);

    writer.close();
            
//            out.println(gson.toJson("abcd"));
//            out.println(gson.toJson(new Long(10)));
//            int[] values = { 1 };
//            out.println(gson.toJson(values));
//            
//            int[] ints = {1, 2, 3, 4, 5};
//            String[] strings = {"abc", "def", "ghi"};
//            
//            out.println(gson.toJson(ints));
//            out.println(gson.toJson(strings));
//            
//            Collection collection = new ArrayList();
//            collection.add("hello");
//            collection.add(5);
//            String x = "GREETINGS" + "guest";
//            collection.add(x);
//            
//            out.println(gson.toJson(collection));
//          

            
        } finally {
            out.close();
        }
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
    
    
}
